Both the male and female incubate the eggs and divert predators using distraction displays or flash their wings to deter any herbivores that threaten the nest.

Both the ergoline and indole-diterpenoid alkaloids have biological activity against mammalian herbivores, and also activity against some insects.

Both parents will lead the young birds to food and care for them for 14 – 16 days until their first flight.

Both the US and Israeli strains are marked by high mortality rates in infected avian populations ; the presence of dead birds — especially Corvidae — can be an early indicator of the arrival of the virus.

( Both bats and birds have retained the thumb for specialized functions.

Both of these birds nest in the Edwards Plateau, the Warbler exclusively.

Both birds incubate and guard the young.

Both birds and reptiles are kept there, and the facility's success in breeding rock iguanas in captivity was reported in the press.

Both condors are very large broad-winged soaring birds, the Andean Condor being 5 cm shorter ( beak to tail ) on average than the northern species, but larger in wingspan.

Both Old World and New World vultures are scavenging birds, feeding mostly from carcasses of dead animals.

D ' Arrigo noted that the flight of a non-motorised hang-glider is very similar to the flight patterns of migratory birds: Both use updrafts of hot air ( thermal currents ) to gain altitude that then permits soaring flight over distance.

Both birds help to incubate.

Both birds build the nest on a main fork or a limb high in a tree, 12-20m high made of dead twigs and lined with grass or other vegetation and sheep ’ s wool.

Both birds gather nest materials, but the female does most of the construction, usually on a horizontal limb or in a crotch well away from the tree trunk, at any height.

Both parents feed the nestlings for a period of 28 – 30 days, until the young birds fledge.

Both feed the young, often leaving them alone for long times ; this unusual habit for wading birds may be made possible by the thick nest walls.

Both birds build the nest on floating platform, after clearing out an area of approximately across.

Both male and female white-striped birds are more aggressive than tan-striped birds during the breeding season.

Both reserves are important for Tern species and a number of wading birds and waterfowl.

Both the breeding and winter habitat of these birds has been degraded by clearance and pollution.

Both of its engines ingest birds and lose thrust as the aircraft returns to the airport, and the plane catches fire during a belly landing.

Both parents look after the young and may perform distraction displays to lure predators away from the nest or young birds.

Apostlebird s. Both species in this family are highly social and live in groups of as many as 20 birds.

Both parents incubate ; the female leaves before the young birds fledge and sometimes before the eggs hatch.

Both parents look after the young birds, who find their own food and are able to fly within a month of hatching.

Both species are short-billed brown birds with a preference for grassland rather the wetland habitats typical of rails.

Both are primarily concerned with the uses that can be made of the material that the collector has found.

Both sides ( with the exception of hyper-Calvinists ) believe the invitation of the gospel is universal and " must be presented to everyone can reach without any distinction.

Both the lower pH and higher aluminium concentrations in surface water that occur as a result of acid rain can cause damage to fish and other aquatic animals.

Both can provide enough tissue to reconstruct large breasts.

Both male and female fleas hematophagy | feed on blood and can transmit the infection.

Both types of cannibalism can also be fueled by the belief that eating a person's flesh or internal organs will endow the cannibal with some of the characteristics of the deceased.

Both the team and its fans ( in the poem, about 5, 000 attended the game ) believe they can win " if only " they could somehow get " Mighty Casey " ( Mudville's star player ) up to bat.

Both dogs and coyotes can kill and not consume the prey, either because they are inexperienced, due to injury or difficulty in killing the prey.

Both modules can check a distribution's dependencies and can be set to recursively install any prerequisites, either automatically or with individual user approval.

Both support FTP and HTTP and can work through firewalls and proxies.

Both sexes have those glands, but males have larger morillos and their anal pockets can open more easily.

Both of these factors favor rebels, as a population dispersed outward toward the borders is harder to control than one concentrated in a central region, while mountains offer terrain where rebels can seek sanctuary.

Both quantities can be calculated efficiently using rotating calipers.

Both batch and continuous distillations can be improved by making use of a fractionating column on top of the distillation flask.

Both logarithmic and trigonometric functions, functions commonly used by both navigators and scientists, can be approximated by polynomials, so a difference engine can compute many useful sets of numbers.

Both the basic and most common list types in computing, queues and stacks can be considered specializations of deques, and can be implemented using deques.

Both the playwright and his work were travestied by comic poets such as Aristophanes, the known dates of whose own plays thus serve as a terminus ad quem for those of Euripides, though sometimes the gap can be considerable ( e. g. twenty-seven years separate Telephus, known to have been produced in 438 BC, from its parody in Thesmophoriazusae in 411 BC!

Both modes can be used together.

Both modes can be used together.

Both men's and women's gymnastics now attract considerable international interest, and excellent gymnasts can be found on every continent.

Both in relativistic and non-relativistic quantum physics, we can identify the group velocity of a particle's wave function with the particle velocity.

Both constants can be modified by special regulatory proteins.